The **ECS-MPI4040R1-R68-R** is a high-performance, miniature power inductor manufactured by **ECS Inc. International**. It belongs to the MPI4040 series, which is designed for high-current applications where board space is at a premium. --- ### 1. Technical Specifications The following table highlights the primary electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Inductance** | 0.68 µH | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | 11.2 mΩ (Typical) | | **Saturation Current ($I_{sat}$)** | 13.0 A | | **Rated Current ($I_{rms}$)** | 8.0 A | | **Operating Temperature** | -40°C to +125°C | | **Dimensions (L x W x H)** | 4.7 x 4.3 x 1.2 mm | | **Shielding** | Magnetically Shielded | --- ### 2. Part Number Breakdown Understanding the nomenclature helps in identifying variants within the series: * **ECS**: Manufacturer (ECS Inc. International). * **MPI**: Series name (Miniature Power Inductor). * **4040**: Case size (approx. 4.0 x 4.0 mm). * **R1**: Profile height code (1.2 mm). * **R68**: Inductance value (R68 = 0.68 µH). * **R**: Packaging suffix (typically denotes Tape & Reel). --- ### 3. Key Features and Benefits * **High Power Density:** Large current handling capability in a very low-profile (1.2 mm height) package. * **Molded Construction:** The metal alloy powder core provides excellent EMI shielding and reduces "buzz" noise. * **Soft Saturation:** Unlike ferrite cores that drop inductance sharply at high currents, this inductor maintains performance more gracefully under heavy loads. * **Lead-Free/RoHS:** Fully compliant with environmental standards for modern electronics manufacturing. --- ### 4. Common Applications Due to its high saturation current and small footprint, the ECS-MPI4040R1-R68-R is commonly found in: 1. **DC/DC Converters:** Point-of-load (POL) power supplies for CPUs and GPUs. 2. **Mobile Devices:** Smartphones, tablets, and wearables where height is restricted. 3. **Industrial IoT:** Compact sensors and communication modules requiring stable power delivery. ---